Fast-drying acrylic marker with high lightfastness. Ideal for coloring, drawings, illustrations, and more. The ink contains highly pigmented, light-resistant, and permanent acrylic paint. It dries quickly and is waterproof. Suitable surfaces include wood, cardboard, canvas, paper, and terracotta. Features a replaceable and retractable 4 mm thick tip. Users: adults, hobbyists, children, artists. Use these markers to create line drawings and sketches, and to quickly add color accents directly to your work. Shake the marker with the cap on before use to get the ink flowing and mix the color with the binder. Hold the marker upright and press the tip to release the inner pressure. The ink will start to flow to the tip, and your marker will be ready to use. After use, securely replace the cap and store the marker horizontally.